Modeling of Thermal Performance of a Commercial Alkaline electrolyzer Supplied with Various Electrical Currents

1990 ◽

Vol 48 (3) ◽

pp. 674-675

Author(s):

P.T. Nguyen ◽

C. Uphoff ◽

C.L. Stinemetz

Keyword(s):

Calcium Binding ◽

Calcium Transport ◽

Primary Role ◽

Immunogold Localization ◽

Root Tips ◽

Electrical Currents ◽

Considerable Evidence ◽

Maize Cultivar ◽

Gravity Response ◽

Induced Changes

Considerable evidence suggest that the calcium-binding protein calmodulin (CaM) may mediate calcium action and/or transport important in the gravity response of plants. Calmodulin is present in both shoots and roots and is capable of regulating calcium transport in plant vesicles. In roots calmodulin is concentrated in the tip, the gravisensing region of the root; and is reported to be closely associated with amyloplasts, organelles suggested to play a primary role in gravi-perception. Inhibitors of CaM such as chlorpromazine, calmidazolium, and compound 48/80 interfere with the gravitropic response of both snoots and roots. The magnitude of the inhibition corresponded well with the extent to which the drug binds to endogenous CaM. Compound 48/80 and calmidazolium block gravi-induced changes in electrical currents across root tips, a phenomenon thought to be associated with the sensing of the gravity stimulus.In this study, we have investigated the subcellular distribution of CaM in graviresponsive and non-graviresponsive root caps of the maize cultivar Merit.

Download Full-text

Low Electrical Currents May Boost Aphasia Outcomes

ASHA Leader ◽

10.1044/leader.rib1.23112018.10 ◽

2018 ◽

Vol 23 (11) ◽

pp. 10-10

Keyword(s):

Electrical Currents

Download Full-text

P1522 Preliminary mid-term safety and efficacy results of cardiac contractility modulation by non-excitatory electrical currents for heart failure

European Heart Journal ◽

10.1016/s0195-668x(03)94660-4 ◽

2003 ◽

Vol 24 (5) ◽

pp. 273

Author(s):

C PAPPONE

Keyword(s):

Heart Failure ◽

Cardiac Contractility ◽

Electrical Currents ◽

Cardiac Contractility Modulation ◽

Safety And Efficacy

Download Full-text

Experimental study of thermohydraulic characteristics and irreversibility analysis of novel axial corrugated tube with spring tape inserts

The European Physical Journal Applied Physics ◽

10.1051/epjap/2020200192 ◽

2020 ◽

Vol 92 (3) ◽

pp. 30901

Author(s):

Suvanjan Bhattacharyya ◽

Debraj Sarkar ◽

Ulavathi Shettar Mahabaleshwar ◽

Manoj K. Soni ◽

M. Mohanraj

Keyword(s):

Heat Transfer ◽

Experimental Study ◽

Thermal Performance ◽

Working Fluid ◽

The Novel ◽

Heat Exchanger Tube ◽

Heat Transfer Augmentation ◽

Corrugated Tube ◽

The Impact ◽

Exchanger Tube

The current study experimentally investigates the heat transfer augmentation on the novel axial corrugated heat exchanger tube in which the spring tape is introduced. Air (Pr = 0.707) is used as a working fluid. In order to augment the thermohydraulic performance, a corrugated tube with inserts is offered. The experimental study is further extended by varying the important parameters like spring ratio (y = 1.5, 2.0, 2.5) and Reynolds number (Re = 10 000–52 000). The angular pitch between the two neighboring corrugations and the angle of the corrugation is kept constant through the experiments at β = 1200 and α = 600 respectively, while two different corrugations heights (h) are analyzed. While increasing the corrugation height and decreasing the spring ratio, the impact of the swirling effect improves the thermal performance of the system. The maximum thermal performance is obtained when the corrugation height is h = 0.2 and spring ratio y = 1.5. Eventually, correlations for predicting friction factor (f) and Nusselt number (Nu) are developed.

Download Full-text